# Lesson 13 Center Day 2

Let’s complete equations and continue to estimate and measure.

## Warm-up Number Talk: Use Ten to Add

Find the value of each expression mentally.

## Activity 1 Introduce Target Measurements, Inches and Centimeters

We are going to learn how to play a new center activity called Target Measurements.

## Activity 2 Centers: Introduce Number Puzzles, Within 100 with Composing

Choose a center.

Number Puzzles

Estimate and Measure

Target Measurements